Indicating apparatus for sizing machines



0. STOEGER INDICATING APPARATUS FOR SIZING mmmzzs Filed Dec. 5, I933 Patented Dec. 17, 1935 UNITED STATES PATENT OFFICE INDICATING APPARATUS FOR SIZING MACHINES Otto Sto'eger, Milan, Italy 5 Claims.

This invention concerns. an improvement in sizing machines through the application of an apparatus which enables an operator in a simple and advantageous way, to treat the warp-threads before passing to the looms with the necessary size at a constant temperature and viscosity, in order to avoid as much as possible the breaking of the warp threads.

For the proper working of the warp thread on the looms, an accurate preparation and treatment of the warp thread is of great importance, and this is only achievable if the sizing penetrates equally into the threads throughout the whole length of the warps, which can be realized only if the .density of the sizing is constant during the whole sizing-Work.

The correct treatment of the warp threads depends consequently on maintaining the density and temperature of the sizing constant during the whole time of treatment by the sizing machines.

. If there is any variation of the density of the sizing, there is a variation of the uniformity of penetration of the sizing into the warp threads and consequently there is frequent breaking of the warp threads during the work on the looms.

The invention aims to eliminate all those inconveniences such as eliminating the touch-test with the finger of the operator on the warp threads and to indicate the changes of the density of the size so that the falling or augmenting of the density during the working of the sizing machine is indicated by an apparatus whose indicator will show to the operator on a special scale, all the changes.

It is essential that some indication must be given to the operator when a change 'of temperature of the sizing should occur, to enable him to keep the sizing always at the same temperature, and to establish precisely whether the falling or augmenting of the density of the sizing is due to the temperature or to the sizing material itself.

Furthermore, the invention provides means of signalling by which the operator is advised if the temperature of the drying chamber or the surface of the drying cylinder is too high or too low for the regular drying of the warp threads. The temperature, in accordance with the density of the sizing and the number of threads, has to be kept at a constant higher or lower level as the case requires.

The regular sizing work can be consequently done only if all these indications are brought within the sight of the operator, to enable him to provide for the necessary corrections. For

this reason the means for giving the necessary indications are placed in the front of the sizing machines.

The operator is by these means kept alert, and 5 ber or cylinder of the sizing machines. 10

The invention and application of the apparatus are illustrated by way of example in the drawing in which:

Fig. 1 illustrates the complete installation on a hot-air "sizing machine of all the signalling apparatuses, and the respective signal boards.

Fig. 2 shows an indicator for indicating the variation of density of the size and,

Fig. 3 is a detail of a nozzle.

A size container 4 is arranged on the sizing 20 machine. A temperature indicator 6 is connected with the indicator-board 6 having two bells of different sounds, which signal the falling or ascending temperature of the size.

A gauge 5 is provided which is attached to a pipe I b for indicating the density of the sizing.

A rotary pump 2 forces under pressure continually through a pipe l a certain quantity of size from the size container 4 which is returned through the pipe I to the size container 4. The 39 pipe l has on its end a nozzle 3 which is constructed to control the size discharged therefrom which returns to the size container 4 after it has passed through the pipe l The pressure of the size in the pipe I b caused 35 by the throttling of the nozzle 3 corresponds with the density of the sizing, that is to say, with the change of the density, changes of pressure simultaneously occur in the pipe l due to the variation of the viscosity of the size and these changes are transported to the indicator 5 whose index I4 moves along upon a scale which indicates in numbers the density of the size and corresponding atmospheric pressure. The indicator 5 consists as shown in Fig. 2 of a lower case 8 and a pointer I 4 moving over a scale or an upper case 9. The case 8 contains an upstanding metal membrane case I!) which is fastened at the base tothe case 8 whilst the upper part swings freely and consequently is enabled to lengthen itself ver- 59 tically.

Through the upper part of the case 8 passes a metal pin H, over which is inserted a helical spring l2 which is interposed between metal membrane member [0 and the upper part of the case 55 8, said spring tending to hold the membrane case H1 in its normal position.

'The lower part of the metal membrane case H1 communicates by means of a channel with the pipe I whereby the variation of pressure of the size in the pipe l is directly transmitted to the metal membrane case 10.

With increasing viscosity of the size the metal membrane case id is expanded upwards and acts against the tension of the spring I2, thereby pressing the metal pin l i also upwards, which in turn through a gearing (not shown) actuates the pointer iii, showing the changes of the density of the sizing on the scale 8; Whose outside numbers indicate the density and inside numbers (not shown) correspond to the pressure.

To clean roughly the metal membrane case [0, there is provided on the lower part of the case 8 a screw-valve it which is in connection with the metal membrane case By unscrewing the valve, and introducing steam in the pipe I it will penetrate into the membrane IE1 and on passing the valve will discharge all the deposits of sizing which may have settled there in the course of time. The whole apparatus can be cleaned by steam in about it! seconds.

To indicate the temperature during the drying process in the hot air chamber or on the surface of the large and small cylinder of the dryer there is applied a thermometer l with illuminated signals of red and green for the maximum and minimum permissible temperature, on the front of the sizing machine, and according to the temperature, it lights the one or the other light, thereby giving the correct signal.-

Through the application of the above said signalling of the temperature in the hot air chamber or cylinders, the operators work is considerably facilitated, as he does not now need to feel the'size with his fingers on the warp threads, as he has only to provide for the regulation of the temperatures or the density of the sizing, according to the signal received, as they appear on the signal board, so that the whole work of the operator becomes more exact as he sets in conformity with these signals indicated by the mechanical instruments. In this way the operator provides threads sized with complete uniformity along the whole length of the warp threads.

'The invention is not restricted to the example illustrated, as the viscosity indicator could also be connected with a signal board with audible or visual signals for all apparatuses, so that the operator would have them in front of him.

I claim:

1 1. In combination with a sizing machine, a pipe with constricted outlet communicating with the size in the size container'o-f said machine, a pump associated with said pipe forcing size therethrough under pressure into the. size container, means for indicating the viscosity of the size within said pipe, means for indicating the temperature of the size and means for indicating the temperature of the hot air chamber of the size machine during the drying process.

2..In combination with a sizing machine, a pipe with a constricted outlet communicating with the size in the size container of said machine, a pump associated with said pipe forcing size therethrough from and into the size container, an indicator connected to said pipe for indicating the density and the corresponding atmospheric pressure of the size, means for indicating the temperature of the size, and means for indicating the temperature of the hot air 5 chamber of. the size machine during the drying process.

3. In combination with a sizing machine, a pipe with a constricted outlet communicating with the size in the size container of said machine, a lo pump associated with said pipe forcing size therethrough from and into the size container, an indicator connected to said pipe for indicating the density and the corresponding atmospheric pressure of the size, a temperature indicator, an audible signalling means co-operating with said temperature indicator being operated when any variation of temperature of the size occurs, and means for indicating the temperature of the hot air chamber of the drying machine during the drying process.

4. In combination with a sizing machine, a pipe with a constricted outlet communicating with the size in the size container of said machine, a pump associated with said pipe forcing size therethrough from and into the size container, an indicator connected to said pipe for indicating the density and the corresponding atmospheric pressure of the size, a temperature indicator for indicating the temperature of the size, an audible signalling means co-operating with said temperature indicator operated when any variation of temperature of the size occurs, a temperature indicator for indicating the temperature of the drying chamber of the sizing machine during the drying process and visual signalling means actuated by the temperature indicator of the drying chamber when the maximum or minimum temperature of the draying chamber is reached. 5. In combination with a sizing machine, a pipe with a constricted outlet communicating with the size in the size container of said machine, a pump associated with said pipe forcing size therethrough from and into the size con-V tainer, a membrane casing connected to said pipe into which flows the size under pressure, a membrane arranged within said casing, a fixed scale mounted upon said casing, a movable pointer moving over said scale connected to said mom-V brane being actuated by the pressure of the size acting upon the membrane, a spring acting upon the membrane against the pressure of the size normally retaining the pointer at zero, said scale provided with a series of numbers indicating the density and a second series of numbers indicating the corresponding pressure, a temperature indicator for indicating the temperature of the size, an. audible signalling means co-operating with said temperature indicator operated when any variation of temperature of the sizeoccurs, a' temperature indicator for indicating the temperature of the drying chamber of the sizing ma' chine during the drying process and visual signalling means actuated by the temperature indicator of the drying chamber when the maximum or minimum temperature of the drying chamber is reached.

OTTO STOEGER. 7 

